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本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-02-24到2021-06-28
作业1st Week. Chapter 1 Introduction 1st Week. Chapter 1 Homework – Typical Environmental Problems
1、 Please choose one of the typical environmental problems involving in chemistry, state its status and the reason, and then suggest your opinion how to alleviate or solve the serious environmental problems.
评分规则: Any environmental problem involving in chemistry
作业2nd Week. Chapter 2 Green Chemistry 2nd Week. Chapter 2 Homework 1
1、 Please state briefly the similarity and the difference between green chemistry and the traditional way of environmental pollution.
评分规则: Analyze rationally the similarity and the difference between green chemistry and the tradtional way to treat environmental pollution.Both English or Chinese is OK, and If only you give an answer, you can get more than 80 points
作业3rd Week. Chapter 2 Green Chemistry 3rd Week. Chapter 2 Homework 2
小提示:本节包含奇怪的同名章节内容
1、 Please explain the concept “atom utilization”.
评分规则: 1
2、 Please explain briefly the concept “Environmental factor”.
评分规则: 2
3、 Please explain briefly the concept “Environmental quotient (EQ)”.
评分规则: 3
4、 See the following method for the preparation of cyclohexane oxide using CH2Cl2 or [Bmin]BF4 (ionic liquid) as solvent. Please calculate separately the atom utilization (AU) and E factor of Run 1 And the atom utilization (AU) and E factor of Run 2.
评分规则: 
5、 Please give us an example to illustrate that the atomic economic reaction is a necessary condition for no pollution.
评分规则: Refer to the materials or literature to give specific examples to answer.More marks will be obtained by giving specific chemical equations, and If only you give an answer, you can get more than 20 points
6、 See the following method for the preparation of cyclohexane oxide using CH2Cl2 or [Bmin]BF4 (ionic liquid) as solvent. Please calculate separately the atom utilization (AU) and E factor of Run 1 And the atom utilization (AU) and E factor of Run 2.
评分规则: 4
作业4th Week. Chapter 2 Green Chemistry 4th Week. Chapter 2 Homework 3
1、 What’s the chemical essence of biodiesel?Can you give us an example of effective and environmentally benign catalysts and catalytic processes for biodiesel production?
评分规则: 1）Essence of biodiesel: A vegetable oil-/animal fat-based diesel fuel consisting of long-chain alkyl (methyl, ethyl, or propyl) esters.The answer is not quite right will get 40 points2）Refer to the textbook or literature to give specific examples to answerJust give a specific example and you can score more than 40 points
作业5th Week. Chapter 2 Green Chemistry 5th Week. Chapter 2 Homework 4
1、 How to make a chemical reaction greener in a reaction process?
评分规则: (1) Searching for new transformation methods. e.g.① Catalytic plasma ② Electrochemical conversion ③ Photo and other radiation conversion ④ Microwave heating(2) Searching for safe and effective reaction conditions. e.g. ① Looking for a safe and effective catalyst (loading of active components, replacing liquid acid with solid acid) ② Looking fora safe and effective reaction medium (two-phase catalytic method using supercritical fluid as reaction medium and water as solvent).
2、 Please choose a used currently organic synthesis route and review it using the principles of green chemistry, then design a new greener synthesis route.
评分规则: Refer to the materials or literature to give specific examples to answerJust give a specific example and you can score more than 40 points
作业6th Week. Chapter 2 Green Chemistry 6th Week. Chapter 2 Homework 5
1、 Please state briefly the 12 principles of green chemistry.
评分规则: Refer to textbook and video courseware for answersBoth Chinese or English is OK
2、 How to design safer chemical?
评分规则: (1) If a certain reaction is essential for the toxic mechanism to be carried out, a structural change could be made to ensure that the reaction could not take place. At the same time, any structural modifications would ensure that the function and performance of the molecule were still preserve.(2) If the mechanism is not known, looking for the correlation existed between chemical structure and the toxic effect. The functionality related to the toxic effect would be avoided, minimized, or eliminated to reduce or eradicate the toxic end-point.(3) Minimizing the bio-availability: If a substance is toxic, yet cannot reach its target organ where its toxicity would be manifested, then it is rendered innocuous.
6th Week. Chapter 2 Green Chemistry 6th Week. Chapter 2 – Unit Test
1、 One of the research area in Green Chemistry is to use renewable feedstocks for chemical production. Which could be used as feedstocks for chemical production in the following resources?
A:Kitchen garbage
B:Waste cooking oil
C:Agricultural wastes
D:Microalgae
答案: Kitchen garbage;
Waste cooking oil;
Agricultural wastes;
Microalgae
2、 The reaction types involved in biomass conversion to fine chemicals and liquid fuels include:
A:Hydrolysis
B:Deoxygenation
C:Condensation
D:Hydrogenation
答案: Hydrolysis;
Deoxygenation;
Hydrogenation
3、 The energy is widely used in chemistry and chemical industry in the following aspects:
A:Accelerates the reaction rate with heat
B:The need to control reactivity through cooling
C:Pre-heating of the reaction mixture
D:Separation energy requirement
答案: Accelerates the reaction rate with heat;
The need to control reactivity through cooling;
Pre-heating of the reaction mixture;
Separation energy requirement
4、 Which typical environmental problems in the following are related to chemical industry?
A:Depletion of ozone layer
B:Photochemical smog and haze
C:Acid rain
D:Global warming
答案: Depletion of ozone layer;
Photochemical smog and haze;
Acid rain;
Global warming
5、 Several unconventional processing techniques that rely on alternative forms and sources of energy are of importance for process intensification. These alternative forms and sources of energy include:
A:Sonic
B:Microwaves
C:Solar energy
D:Photo and other radiation
答案: Sonic;
Microwaves;
Solar energy;
Photo and other radiation
6、 In some cases, the application of atomic economical reaction in chemical synthesis is not enough for eliminating the formation of wastes. These cases include:
A:The presence of parallel reaction
B:Low equilibrium conversion
C:Low product stereoselectivity
D:Difficulty in product separation
答案: The presence of parallel reaction;
Low equilibrium conversion;
Low product stereoselectivity
7、 These renewable feed-stocks are most often associated with biological and plant based starting materials, including:
A:Agricultural wastes
B:Sawdust
C:Carbon dioxide
D:Coal
答案: Agricultural wastes;
Sawdust
8、 The goal of green chemistry is to treat the environmental pollutions already generated in chemical reactions.
A:正确
B:错误
答案: 错误
9、 The atomic economical reaction is not a requisite condition (必要条件) for eliminating the formation of wastes because the low equilibrium conversion and low product selectivity in a chemical reaction will also bring about pollutions.
A:正确
B:错误
答案: 错误
10、 Renewable feedstocks are the substances that are easily regenerated within time frames that are accessible to the human lifetime, including carbon dioxide and methane.
A:正确
B:错误
答案: 正确
11、 We can control the reaction process even we cannot measure the parameters of chemical reaction.
A:正确
B:错误
答案: 错误
12、 The goal of green chemistry is to eliminate the potential of pollution before it occurs.
A:正确
B:错误
答案: 正确
13、 One of the obvious effect of catalysis to facilitate the reaction is to minimize the activation energy (energy costs), and thus reduce the reaction temperature.
A:正确
B:错误
答案: 正确
14、 Traditional pollution treatment can provide a permanent cure.
A:正确
B:错误
答案: 错误
15、 Chemical reaction with 100% atom utilization has two characteristics. The reactants could be fully utilized, and the resource could be most possibly used economically. The waste could be minimized.
A:正确
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